exam
Maths Puzzle
Numerical Ability
5-x=7+2x-4
what is x
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exam Other Question
Jenny inherits $42,900 and invests it for a year in two stocks. Stock A earns 12.5% annually and stock B earns 8.5% annually. How much did she invest in each stock if stock B earned three-quarters as much as stock A?
The formula A=6V^2/3 gives the surface area of a cude in terms on its colume V. What is the volume of a cube with surface area of 12 square feet?
I come up with, 12=6(1)^2/3 So the colume is 1.
Am I correct?